Engaging And Disengaging The Four-Wheel Drive; Driving Start Automatics; Setting The Driving Start Automatics - Valtra HiTech T3 Series Operator's Manual

3. Operation
• The speed sensors are not calibrated.
• A switch fault has occurred (the service code is displayed).
3.8.23

Engaging and disengaging the four-wheel drive

You can control the engagement of the four-wheel drive (4WD) with the 4WD
switch. The switch has three positions (ON, AUTO, OFF).
Keep the 4WD disengaged while driving on the road if it is not required. Using the
4WD is not allowed at driving speeds of over 15 km/h if road conditions are good.
GUID-6EF311B3-7EE1-4CCD-9DA9-19EC7D6ACAC9
1. 4WD switch
• To engage the 4WD, press down the symbol side of the 4WD switch (ON).
• To use the automatic function of the 4WD, turn the 4WD switch to the middle
position (AUTO).
• To disengage the 4WD, press down the side of the 4WD switch opposite to
the symbol (OFF).
3.8.24

Driving start automatics

Driving start automatics can be used to prevent the rear wheels from slipping
when starting to drive, when using the power shuttle and when the speed range
is changed.
NOTE: Driving start automatics operates only when the driving speed is under 10
km/h.
When the driving start automatics has been activated from the A-pillar display the
automatics engages four-wheel drive for a set time when starting to drive or when
the driving direction is changed. If the driving speed exceeds 10 km/h and wheel
slip is more than 6% when starting to drive, the driving start automatics
disengages the four-wheel drive when the slip falls below 6%.
When the speed range is changed the driving start automatics engages the four-
wheel drive if the wheel slip is more than 6%. The four-wheel drive disengages
when the wheel slip is less than 6%.
If the clutch pedal or HiShift push button has been pressed while driving the
driving start automatics engages when releasing the clutch pedal or HiShift push
button.
3.8.25

Setting the driving start automatics

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